Title:
PREPARATION METHOD FOR ULTRAHIGH-DENSITY CERAMIC BODY
Document Type and Number:
WIPO Patent Application WO/2022/088270
Kind Code:
A1
Abstract:
Provided is a preparation method for an ultrahigh-density ceramic body, comprising: firstly weighing ceramic raw material powder for ball-milling mixing, and carrying out filtering, drying and sieving after ball-milling; then, mixing sieved ceramic powder with a solvent for planetary stirring, adding a plasticizer after a period of time, continuing to carry out stirring, adding a binder after a period of time, and continuing to carry out planetary vacuum stirring; next, preparing the ceramic body from a ceramic slurry by means of a wet forming process, carrying out in-situ drying, and carrying out custom cutting and stacking on the ceramic body according to application requirements; and finally, successively carrying out hot isostatic pressing and debinding on the ceramic body to obtain the ultrahigh-density ceramic body. The super-continuous ceramic slurry which is uniform in component distribution and free of bubbles is obtained in a mode of forming a three-dimensional network, the integrated and non-layered ceramic body is prepared by using an in-situ curing mode and an air debinding method, the relative density of the prepared ceramic body reaches 65%, and the application prospect is wide.
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Inventors:
ZHANG LE (CN)
SHAO CEN (CN)
KANG JIAN (CN)
WANG ZHONGYING (CN)
HUANG GUOCAN (CN)
YAO QING (CN)
LI MING (CN)
FEI BIN (CN)
QIU FAN (CN)
ZHAO CHAO (CN)
CHEN HAO (CN)
SHAO CEN (CN)
KANG JIAN (CN)
WANG ZHONGYING (CN)
HUANG GUOCAN (CN)
YAO QING (CN)
LI MING (CN)
FEI BIN (CN)
QIU FAN (CN)
ZHAO CHAO (CN)
CHEN HAO (CN)
Application Number:
PCT/CN2020/128600
Publication Date:
May 05, 2022
Filing Date:
November 13, 2020
Export Citation:
Assignee:
XINYI XIYI ADVANCED MATERIALS RESEARCH INSTITUTE OF INDUSTRIAL TECH CO LTD (CN)
XUZHOU ALL TO PHOTOELECTRIC TECH CO LTD (CN)
XUZHOU ALL TO PHOTOELECTRIC TECH CO LTD (CN)
International Classes:
B28B11/24; B28B3/00; B28B13/02; B28C3/00; C04B35/505; C04B35/58; C04B35/632; C04B35/634
Foreign References:
| CN111170726A | 2020-05-19 | |||
| CN109053158A | 2018-12-21 | |||
| CN104844224A | 2015-08-19 | |||
| CN104261817A | 2015-01-07 | |||
| CN106495691A | 2017-03-15 | |||
| US20140179509A1 | 2014-06-26 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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